6. Workout Tracker

If you’re going to exercise, you might as well make it count. Literally. Uber-tracking devices like Fitbit and BodyMedia products record every move you make (or don’t make when you’re snoozing). The data on body heat, perspiration and sleep quality are sent to an outline profile so users can keep a tally of daily totals. And runners can take advantage of RunKeeper and Nike+, with apps that monitor distances and use verbal cues for interval training. RunKeeper syncs up with smart-phone GPS apps to track runners’ time, distance, pace and calories burned. And what’s all that sweat worth if you can’t share it? Both apps allow runners to share their logs with friends on Facebook and Twitter.